DERIVATIZED POLYHYDROXYSTYRENE HAVING NOVOLAC TYPE STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a novel method of manufacturing a 4-hydroxystyrene polymer useful for a photoresist or the like without using a raw material, 4-hydroxystyrene, having a problem of easy decomposition or the like.

SOLUTION: The novel derivatized poly(4-hydroxystyrene) (PHS) is obtained by methyl-etherizing 4-hydroxymethyl-carbinol in stead of 4-hydroxystyrene and polymerizing the methyl-etherized compound. The NMR measurement shows that the obtained PHS is substantially linear (about 6 to about 40 wt.%) in comparison with the conventional PHS and further has low polydispersity (less than about 2.0).

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